: If the unit fails to calibrate or function, it must be sent to the Mac Tools Repair Center with all components (leads, batteries) included for diagnosis [0.5.2]. 5. Troubleshooting Common Issues
Set dial to the . Used to check the health of alternators or charging system components. 4. Maintenance and Storage Mac Tools Et 130 Manual
: Check the internal fuse; blown fuses are common if the red lead was incorrectly placed in the 10A port during a voltage check. : If the unit fails to calibrate or
: Inspect test leads for fraying or broken wires. Mac Tools Et 130 Manual